package com.itheima.web.controller;


import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/ex")
public class ExController {

    public String test1() throws Exception{
        String str = null;

        str.length();

        System.out.println("123456789");

        int i = 1/0;

        return  "ex";
    }
}
